package com.web.controller.common;

import com.web.common.constant.ServletUtils;
import com.web.common.domain.AjaxResult;
import com.web.common.page.PageDomain;
import com.web.common.page.TableDataInfo;
import com.web.common.page.TableSupport;
import com.web.common.utils.SqlUtil;
import com.web.common.utils.StringUtils;
import com.web.utils.DateUtils;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.propertyeditors.CustomDateEditor;
import org.springframework.web.bind.WebDataBinder;
import org.springframework.web.bind.annotation.InitBinder;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.beans.PropertyEditorSupport;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.List;

/**
 * web层通用数据处理
 *
 * @author liuyanlong
 */
public class BaseController{
    /**
     * 将前台传递过来的日期格式的字符串，自动转化为Date类型
     */
    @InitBinder
    public void initBinder(WebDataBinder binder) {
        // Date 类型转换
        binder.registerCustomEditor(Date.class, new PropertyEditorSupport(){
            @Override
            public void setAsText(String text) {
                setValue(DateUtils.parseDate(text));
            }
        });
    }

    /**
     * 设置请求分页数据
     */
    protected void startPage() {
        PageDomain pageDomain = TableSupport.buildPageRequest();
        Integer pageNum = pageDomain.getPageNum();
        Integer pageSize = pageDomain.getPageSize();
        if (StringUtils.isNotNull(pageNum) && StringUtils.isNotNull(pageSize)) {
            String orderBy = null;
            try {
                orderBy = SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
            } catch (Exception e) {
                e.printStackTrace();
            }
            PageHelper.startPage(pageNum, pageSize, orderBy);
        }
    }
    protected String getUrl(HttpServletRequest request){
        /*String scheme = request.getScheme();
        String serverName = request.getServerName();
        if(serverName.contains("examBank")){
            return  "http://dyd.liuyanlong.cn/";
        }
        String serverPort ="";
        if(request.getServerPort()!=80){
            serverPort = ":"+request.getServerPort();
        }
        String servletPath = request.getServletPath();
        String uri = request.getRequestURI();
        if(uri.contains("examBank")){
            servletPath="/examBank/";
        }else {
            servletPath="/";
        }
        String url = scheme +"://" + serverName
                + serverPort
                + servletPath;
        return url;*/
        return "";
    }
    protected void startPage(PageDomain pageDomain) {
        Integer pageNum = pageDomain.getPageNum();
        Integer pageSize = pageDomain.getPageSize();
        if (StringUtils.isNotNull(pageNum) && StringUtils.isNotNull(pageSize)) {
            String orderBy = null;
            try {
                orderBy = SqlUtil.escapeOrderBySql(pageDomain.getOrderBy());
            } catch (Exception e) {
                e.printStackTrace();
            }
            PageHelper.startPage(pageNum, pageSize, orderBy);
        }
    }

    /**
     * 响应请求分页数据
     */
    @SuppressWarnings({"rawtypes", "unchecked"})
    protected TableDataInfo getDataTable(List<?> list) {
        TableDataInfo rspData = new TableDataInfo();
        rspData.setCode(0);
        rspData.setRows(list);
        if (list != null) {
            rspData.setTotal(new PageInfo(list).getTotal());
        }
        return rspData;
    }

    /**
     * 响应返回结果
     *
     * @param rows 影响行数
     * @return 操作结果
     */
    protected AjaxResult toAjax(int rows) {
        return rows > 0 ? success() : error();
    }

    /**
     * 响应返回结果
     *
     * @param result 结果
     * @return 操作结果
     */
    protected AjaxResult toAjax(boolean result) {
        return result ? success() : error();
    }

    /**
     * 返回成功
     */
    public AjaxResult success() {
        return AjaxResult.success();
    }

    /**
     * 返回失败消息
     */
    public AjaxResult error() {
        return AjaxResult.error();
    }

    /**
     * 返回成功消息
     */
    public AjaxResult success(String message) {
        return AjaxResult.success(message);
    }

    /**
     * 返回失败消息
     */
    public AjaxResult error(String message) {
        return AjaxResult.error(message);
    }



    /**
     * 页面跳转
     */
    public String redirect(String url) {
        return StringUtils.format("redirect:{}", url);
    }


}
